What is on the exhaust manifold bolts? Got a few new ones but wondering if I need to put some sealer or loctite on the old ones? New bolts have a reddish sealer on lower portion.
Thanks

 

I believe it is type of loctite. But it would have to be high temp. The Rave just says to discard the bolts and use new.

1. Remove 8 bolts securing exhaust manifold and
collect spacers. Discard the bolts.
2. Remove exhaust manifold.
3. Remove 2 manifold gaskets and discard.
Reassembly
1. Clean exhaust manifold and cylinder head
mating face.
CAUTION: Do not use a metal scraper or
machined surfaces may be damaged.
2. Fit new gaskets, dry, fit exhaust manifold.
CAUTION: Ensure that link bar on gasket is
positioned below spark plugs.
LH bank illustrated
3. Fit spacers to new manifold bolts and, working
in the sequence illustrated, initially tighten bolts
to 15 Nm (11 lbf.ft), then finally tighten to 38 Nm

 

The Rave just says to discard the bolts and use new. thats pretty much LR answer to everything, replace it with new.

 

I have about 5 new exhaust bolts.
Paid $4 or so each for them.
They are still sealed as new.
And they have the coating on the ends too.

I can put them on Ebay all for $15 plus shipping - if there is interest.
5 new exhaust bolts - $15.

 

If you're in Maine, I'd definitely replace the bolts with all new. Those 12points don't last long in corrosive areas.